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The promise and power of RNA - -

By Andrew Pollack

The Promise and Power of RNA

Omikron/Photo Researchers; Richard Jorgensen/U. of Arizona

RNA turns out to be far more important than previously thought. Left, messenger RNA, active in protein production; right, silencing RNA turns off the gene that makes the purple pigment in this petunia.

By ANDREW POLLACK

Published: November 10, 2008

People whose bodies make an unusually active form of a certain protein tend to have dangerously high levels of cholesterol. Those with an inactive form of the protein have low cholesterol and a low risk of heart attacks.

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A Bestiary of RNA

David Corcoran, a science editor, explores some of the topics addressed in this week�s Science Times.

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